SW-Aerospace-Smart-Repair-Video-Series-SKYscapes-Clear-Coat-CM0850180-Freshly-Painted-English-video-en_US.mp4
GFX: Sherwin-Williams Aerospace Coatings
[00:00:12] Hi, guys. My name is Richard Giles, Sherwin-Williams Aerospace Technical Service and training manager. I'm here at our training facility in Andover, Kansas. In this video clip, we're gonna be showing how to spot repair the CMO 850180 clear coat. This is our commercial coat for base and clear. And when the material is fresh, what you're able to do is to do a localized repair. And then once dry, you can polish out the the edges into an invisible film.
GFX: Sand Immediate Area with P320 Paper and P600 on Permimeter, Wipe area with Cm0110158 basecoat surface cleaner
Behind us we've already prepared a panel using P 320 in the center with a P 600 perimeter. We've washed it with the 158, which is the prepaint wipe for all paint systems. And with this blowing technique, we're going to mix it per datasheet, which is one base, one hardener, one activated solvent and for the outer edges we're going to then further reduce that by 50 percent using CMO 110944. So we'll mix up the two mixes. What we normally do typically is a top tip is literally make more than we need, then make that division of 2 and then add to the second container.
GFX: Mix 1 part clear, 1 part hardener, 1 part repair reducer
If you look on the data sheet of the 180 clear, we give a range of activation options. Because it's a small localized repair although it's hot today. This is called C09 and this is a very fast repair system because typically when you're doing a smart repair or fade out repair, no one wants the film to stay wet for several hours. So what we do is we close the film immediately because it could be an MRO environment where you've got engineers and people walking around. This will close the film and start cross linking very, very quickly.
*Assistant mixing materials*
This is a one to one to one mix, very simple. On the data sheet, there is a solvent option. If you want to further reduce the solids, it's optional only, but certainly quite a few refinishers like the lower solids. Most like it it's full solids format. But there's the option. So this is gonna be the the middle of the repair. And then you're gonna dilute that 50 percent using 944 for the perimeter.
*Assistant mixing materials*
The reason we dilute the solids on the perimeter is to have a tapered repair from where the teeth of the DA whether the repair site where it's tiered, where you don't have a very heavy, solid, wet edge and then becomes a dry edge. So the sanding and repairability is easier.
Helpful tip: Mark containers with each mix type
That's a very useful tip. Very simple. But if you're splitting anything, mark them. OK. So now we're ready to apply this. This is a straightforward wet on wet process. It's very, very quick. And it's to do with repairing the faded edge, which is the key to this. You have to have enough solids for the D.A. profile, but not too much where you're having a step system where it's very awkward to sand off.
GFX: Wipe area with CM0110158 basecoat surface cleaner, spray clearcoat mixture
As far as the spraying technique, we understand the two mixes, what they're for. Typically to recover you want a certain film thickness for durability, color fastness for gloss retention. We would put two coats on the interior of the repair itself typically, and then to coach further out on the repair side. And what is very important is that when we do these spot repairs, the same longevity and color fastness is on the repair as on the previous original paint.
GFX: Spray diluted clearcoat mixture
So paint thickness is still very important on smart repairs. Now that all of the repairs are clear coated, you can see that the color transitions profile under repair itself is totally invisible to the eye at all light conditions in all angles. The definition of a repair is where is it? If we can achieve an invisible static repair that isn't noticeable to an inspector or customer? In all light conditions, we consider that successful.
[00:06:03] Follow us on our YouTube channel, Sherwin-Williams Aerospace for all future smart repairs.
GFX: Sherwin-Williams Aerospace Coatings
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